Games : I'm stuck in Terraria (iPad)

(sorry if my English skills sucks)

I'm stuck in Terraria, on my iPad.

This is what I have been doing so far:

I have shadow helmet/scalemail/greaves equipment. Weapons such as, phoenix blaster slow starfury, breaker blade, and I have defeated, eye of Cthulhu, eater of worlds, brain of Cthulhu, Skeltron, goblin army (many times) and the wall of flesh.

Please tell me, anyone, what can I do now???